Our Mazda RX7 caliper conversion has been in the works for some time. We've had the calipers since late last year, and have been taking our time with it due to other commitments and projects.

The calipers have been rebuilt, We've sandblasted a pair of strut tubes and modified them for a new front swaybar link setup we're also working on, we've made a set of ducted backing plates to suit the mazda calipers and have recently finished the adaptor brackets.

Simon (RBOVLOV242) in South Australia is also doing the same conversion for his Nissan powered 242 project.
He had a set of adaptor brackets made and was kind enough to send them to us so we could copy them and we worked on ducted backing plates to suit.

There's some fantastic information on this conversion from Kevin Hawkinson and John V in the 'Performance and Suspension' forum. Lots of interesting comments and thoughts and well as the why and why nots of it all. Well worth reading.

Caliper weight is a significant adavantage, the Mazda caliper is aluminium as opposed to the cast iron 240 caliper. The Mazda caliper is approx 1/3 larger in physical size and IIRC 9lbs lighter.
Pad surface area is similar with the mazda being bigger, part of the advantage comes in larger discs.

Of course this isnt to take away from actually how good standard 240 calipers are - combined with decent pads, decent fluid and everything in good working order, the standard 240 front brake arrangement is very good. Some people do want something better than this.

Others head down the S60R caliper and disc avenue, which is a very nice conversion. 17" wheels are a must have though, and for some people they are price-prohibitive. Dougs old 242 and Dave Bartons 245 are brilliant and beautiful examples of this setup.

Most 15" wheels should clear this setup fine, but there will be some exceptions. Virgos shouldnt be a problem though.
The second line to each wheel should be plugged at the distribution block.

Price is $129.00 per pair, shipping will be minimal due to being able to package them so small and them not being too heavy. More details will be available soon via our website.

just the brackets??? This is a fantastic price for these units. Machine time is not cheap, not to mention he has to buy the aluminum.

I was just trying to clarify, dont flip out man. I know what materials and workmanship cost, and this is a good value considering the 129 is in aussie dollars. I guess I should rephrase: are there any other specific parts required that come in the kit?

I was just trying to clarify, dont flip out man. I know what materials and workmanship cost, and this is a good value considering the 129 is in aussie dollars. I guess I should rephrase: are there any other specific parts required that come in the kit?

To answer your question, the conversion is a relatively simple one, ie. you'll need to block two ports in your distribution block, source pads and discs (we can also supply ATE or Brembo slotted discs and EBC pads), source your own calipers (which are usually cheaper in the US) and either run no backing plate or modify your existing one (we can also supply ducted backing plates to suit). In addition to that we'd recommend using high-tensile fasteners (we can supply these too)

For simplicitys sake, what you'd be buying is caliper adaptors only. Included would also be a shopping list of additional components required.

I would think that including bolts would increase postage costs (due to weight) and I'd think that purchasing bolts locally in the US would be significantly cheaper than the additional cost of us supplying you bolts and the increase in postage.

eg. Recently we were unable to source longer wheel bolts for an 850. The freight cost alone of having 10 bolts sent from the US was $108 USD!!! Pricing was nearly the same for freight from various suppliers.